Scam in UK

The phone went and I answered (but without speaking) and the voice said "this is Scottish Gas" and invites me to tell them my meter reading. (My utilities are not with such a company. I recently interacted comprehensively with my actual energy company.)

Two possibilities:

- they have addresses matching the phone numbers and are going try to claim money anyway

- they don't have addresses and just hope they will get a few random mugs as takers

They also asked me to press a key which I DIDN'T.

The other set of possibilities is, it may be to do with finding out which phone lines to hack, or what time of week someone is in their flat.

As if I don't have worries.

Those calls come from 0333 202 9784. In the second one, they explicitly asked me to phone 0333 202 9524.

The new brazen method is to pretend frankness.

Don't phone those, don't speak and above all don't press any buttons when they tell you to!

I approached my energy company (which is of a different name to the above) myself for my own reasons three weeks ago, inputting lots of specific details, and the person I was dealing with seemed to understand, and since then I have received the expected two envelopes and when the home help comes tomorrow she can double check whether it is as expected.

A different thing: before now I have had my energy switched or purportedly switched TWICE to a different company without my wanting. It is always a lot of wasted work getting this put right again.